<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>验证用户输入的密码</title>
    <script>
        var password = prompt('请输入密码：');
        if (password == '123456') {
            alert('密码输入正确!');
        }else{
            alert('密码输入错误!');
        }
    </script>
</head>
<body>

</body>
</html>